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                        ®
SuperStack II PS Hub 
®
User Guide
3C16405 — PS Hub 40 12-port
3C16406 — PS Hub 40 24-port
3C16450 — PS Hub 50 24-port
http://www.3com.com/
Part No. DUA1640-5AAA02
Published July 1997                                                                                                                                                                                                                                                                                                                           
                    
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                        3Com Corporation © 3Com Technologies, 1997. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or 5400 Bayfront Plaza adaptation) without permission from 3Com Technologies. Santa Clara, California 3Com Technologies reserves the right to revise this documentation and to make changes in content from 95052-8145 time to time without obligation on the part of 3Com Technologies to pr
                    
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                        CONTENTS IMPORTANT SAFETY INFORMATION L’INFORMATION DE SÉCURITÉ IMPORTANTE WICHTIGE SICHERHEITSHINWEISE ABOUT THIS GUIDE Introduction 1 How to Use This Guide 2 Conventions 2 BOUT THE UB 1 A  PS H Introduction 1-1 Features 1-2 How You Can Use the PS Hub 1-4 Building Up a Network 1-4 Expanding an Existing Network 1-5 Migrating to Higher Performance 1-6 Workgroups 1-7 What Are Workgroups? 1-7 Segments and Port Switching 1-8 Workgroup Example 1-11 2 HOW THE PS HUBS DIFFER Overview 2-1 PS Hub 40 2-2 
                    
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                        3 USING THE PS HUB LEDs and Ports 3-1 Before You Start 3-4 What Other Equipment Is Needed? 3-4 Positioning the PS Hub 3-6 Using the Rubber Feet 3-6 Using the Labels 3-7 Rack and Wall Mounting 3-8 Rack Mounting 3-8 Wall Mounting 3-9 Connecting Workstations to Your Hub 3-11 Using Transceiver Modules 3-12 Connecting PS Hubs Together (Stacking) 3-12 About Cascade Cables 3-13 Using Cascade Cables 3-14 Using Hot Swap Cascade Units 3-15 Connecting Different Hubs and Stacks to Your Hub 3-16 Powering On 
                    
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                        Command Line Interface (CLI) 5-8 Through the Console Port 5-8 Over the Network 5-11 Web Interface 5-12 Through the Console Port 5-12 Over the Network 5-12 Which Web Browsers are Supported? 5-12 Quick Config Manager 5-13 Through the Console Port 5-13 Over the Network 5-14 6 USING THE COMMAND LINE INTERFACE Accessing the CLI 6-2 Initial Access 6-2 Logging On 6-2 Logging Off 6-3 Using the CLI Menus 6-4 CLI Menu Structure 6-4 Navigating the Menus and Entering Commands 6-5 Quick Guide to the Commands
                    
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                        Using the Web Interface 7-7 Unit View and Unit Pages 7-8 User Access Levels 7-9 Exiting the Web Interface 7-9 Online Help System and Documentation 7-9 Unit Pages 7-10 Unit View 7-10 Unit Status 7-11 Management Address 7-12 Port Setup 7-13 Console Port Configuration 7-14 Segment Configuration 7-15 Switch Configuration 7-16 Permanent Address Management 7-16 Management Settings Pages 7-17 Documentation 7-17 Getting Started 7-18 Password Setting 7-19 System Name 7-19 Configuration Pages 7-20 Initial
                    
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                        A DIMENSIONS, STANDARDS AND CABLING Dimensions and Operating Environment A-1 BABT Approval (for U.K. Users Only) A-1 Standards A-2 Cabling A-3 10BASE-T Cable A-3 Console Cable A-4 Modem Cable A-5 Cascade Connections A-6 Management Settings A-6 B MANAGEMENT USING QUICK CONFIG MANAGER Installing Quick Config Manager and the Load Balancing Tool B-2 Installation Requirements B-2 Installation Procedure B-3 Running Quick Config Manager B-4 Configuring Multiple Stacks B-4 Selecting Your Management Acce
                    
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                        C SERIAL WEB UTILITY Introduction C-1 Installing the Serial Web Utility C-1 Using the Serial Web Utility C-3 Solving Problems With the Serial Web Utility C-4 D AGENT UPGRADE UTILITY Using the Upgrade Utility D-1 Solving Problems With the Agent Upgrade Utility D-3 E TECHNICAL SUPPORT Online Technical Services E-1 World Wide Web Site E-1 3Com Bulletin Board Service E-1 3ComFacts Automated Fax Service E-2 3ComForum on CompuServe Online Service E-3 Support from Your Network Supplier E-3 Support from
                    
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                        IMPORTANT SAFETY  INFORMATION WARNING: Warnings contain directions that you must follow for your  personal safety. Follow all instructions carefully. Please read the following safety information thoroughly before  installing the PS Hub. ■ Installation and removal of the unit must be carried out by qualified  personnel only. ■ Connect the unit to an earthed power supply to ensure compliance  with European safety standards. ■ The power cord set must be approved for the country where it will  be us
                    
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                        ■ For Switzerland: The supply plug must comply with SEV/ASE 1011. ■ ■ It is essential that the mains socket outlet is installed near to the  unit and is accessible. You can only disconnect the unit by  removing the appliance coupler from the unit. ■ This unit operates under SELV conditions (Safety Extra Low Voltage)  according to IEC 950, the conditions of which are maintained only if  the equipment to which it is connected is also operational under  SELV. ■ France and Peru only: ■ This unit can
                    
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                                                           L’  S  INFORMATION DE ÉCURITÉ IMPORTANTE AVERTISSEMENT: Les avertissements contiennent les directions que  vous devez suivre pour votre sécurité personnelle. Suivez toutes les  directives avec soin. Veuillez lire à fond l'information de la sécurité suivante avant d'installer  le PS Hub. ■ L'installation et l'enlèvement de l'unité doivent être faits seulement  par le personnel qualifié. ■ Brancher l'unité à une source de courant mise à la terre pour assurer  la 
                    
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                        ■ C'est essentiel que le socle soit installé près de l'unité et soit  accessible. Vous pouvez seulement débrancher l'unité en enlevant  la fiche d'alimentation de la prise de courant. ■ Cette unité marche sous les conditions SELV (Safety Extra Low  Voltage) conformément à IEC950, ces conditions sont maintenues  seulement si le matériel auquel elle est branchée, est aussi en  exploitation sous SELV. ■ Seulement Pour La France et Le Pérou: ■ Cette unité ne peut pas être mise en marche des sources 
                    
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                          WICHTIGE SICHERHEITSHINWEISE WARNUNG: Warnungen enthalten Anweisungen, die zur eigenen  Sicherheit unbedingt zu beachten sind. Bitte befolgen Sie alle  Anweisungen sorgfältig und genau. Bitte unbedingt vor dem Einbauen des PS Hub Einheit die folgenden  Sicherheitsanweisungen durchlesen. ■ Ein- und Ausbau des Gerätes ist nur von Fachpersonal vorzunehmen. ■ Das Gerät an geerdete Stromversorgung anschließen, um eine  Übereinstimmung mit den europäischen Sicherheitsbestimmungen  zu gewährleisten. 
                    
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                        ■ Steckdose Für Redundant Power System: Nur ein 3Com Redundant  Power System an diese Steckdose anschließen. Für weitere Angaben  die genauen Einbauanweisungen im Handbuch zum Redundant  Power System befolgen. Die Einheit ist unter keinen Umständen an einen Wechselstrom  Netzstecker (A.C.) anzuschließen, wenn dieser keine Erdung hat.                                                                                                                                                                     
                    
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                        ABOUT THIS GUIDE ® Introduction This guide describes how to set up and manage these SuperStack II  PS Hubs: ■ 3C16405 — PS Hub 40 12-port ■ 3C16406 — PS Hub 40 24-port ■ 3C16450 — PS Hub 50 24-port Audience This guide is intended for users who have networking experience. If you  Description have used 3Com’s SuperStack II range of products, you may already be  familiar with using this kind of hub. We recommend that you read  through this guide as the PS Hub has a number of important features  whi
                    
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                          2 ABOUT THIS GUIDE How to Use This table shows where to find specific information in this guide. This Guide If you are looking for... Turn to... An introduction to the hub, workgrouping and segments Chapter 1 Information on how the PS Hub 40 and PS Hub 50 are different Chapter 2 from each other Information on installing and using the hub Chapter 3 An introduction to load balancing and how it works Chapter 4 Ways you can manage the hub and how to start your Chapter 5 management session Informat
                    
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                        Conventions 3 Text Conventions Table 2    Convention Description Syntax The word ‘syntax’ means you must evaluate the syntax  provided and supply the appropriate values. Placeholders  for values you must supply appear in angle brackets.  Example: Change the password by using the following syntax: password  In this example, you must supply a password string for  . Commands The word ‘command’ means you must enter the  command exactly as shown in text and press the Return or  Enter 
                    
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                        4 ABOUT THIS GUIDE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
                    
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                        ABOUT THE PS HUB 1 This chapter contains the following topics: ■ Features and benefits of the PS Hub ■ How the PS Hub can be used ■ Using workgroups ■ Description and example of the PS Hub segmentation ■ How the PS Hub works ® Introduction The SuperStack II PS Hub, as shown in Figure 1-1, is a flexible  managed Ethernet repeater which is very easy to set up and manage.  It can be used to build a small network or to expand a larger, more  established network. Figure 1-1   The PS Hub The PS Hub is
                    
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                        C 1: A  PS H 1-2 HAPTER BOUT THE UB Features The PS Hub 40 and PS Hub 50 share many features: NOTE: These terms and features are described in this chapter and the  following chapters. ■ 12 or 24 shielded twisted pair ports for easy connection to  10BASE-T networks. An MDI/MDIX switch allows you to cross-over  one of these ports, for connection to other types of hubs and  network equipment. ■ One or two transceiver module slots, providing a choice of media  options: The PS Hub 40 has two 10Mbps t